Zohn is undergoing 12 weeks of chemotherapy treatment, called SGN-35, which targets the cancerous cells and will prevent him from losing his hair. He is also hoping to have another stem-cell transplant from one of his brothers.

“But the doctors won’t tell me which one. They didn’t want me to start treating one differently than the other,” Zohn told People. “Of course my whole family is taking bets on who it is.”